JP3226249U - Power control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power control system for controlling power in real time. The present invention discloses a power control system. The power control system is installed in a predetermined area and electrically connected to the power grid system. The power control system includes a server, a smart gateway device, a power measurement device, a smart meter, a first power control device, a power generation device, a second power control device, a plurality of electronic devices, and an energy storage device. The power measuring device measures the current supply value of the first power of the first power control device every second. The power measuring device measures the current usage value of the second power of the second power control device every second. The power measuring device provides the current difference value between the current supply value and the current usage value to the first power control device and the smart gateway device. The first power control device adjusts the first power based on at least the current difference value. [Selection diagram] Figure 1

Description

  The present invention relates to a power control system, and more particularly to a power control system that controls power in real time.

  Now that self-sufficient electricity production is increasing, it is still necessary to provide large amounts of electricity through grid systems. In this situation, it is necessary to reduce the load on the grid system and increase the utilization rate of self-contained power by designing the power control system.

  Therefore, providing a power control system that controls power in real time has become an important issue.

  The problem to be solved by the present invention is to provide a power control system to solve the problems of the prior art.

  The power control system according to the present invention is installed in a predetermined area and electrically connected to the power grid system. The power control system includes a server, a smart gateway device, a power measurement device, a smart meter, a first power control device, a power generation device, a second power control device, a plurality of electronic devices, and an energy storage device. The smart gateway device is communicatively connected to the server. The power measuring device is communicatively connected to the smart gateway device. The first power control device is electrically connected to the smart meter and provides a first power. The power generation device is electrically connected to the first power control device. The second power control device is electrically connected to the smart meter and receives the second power. The plurality of electronic devices are electrically connected to the second power control device. The energy storage device is electrically connected to the second power control device. The power measuring device measures the current supply value of the first power of the first power control device every second. The power measuring device measures the current usage value of the second power of the second power control device every second. The power measuring device provides the current difference value between the current supply value and the current usage value to the first power control device and the smart gateway device. The first power control device adjusts the first power based on at least the current difference value.

  One of the beneficial effects of the present invention is as follows. The power control system according to the present invention jointly provides a system capable of long-term and real-time power prediction by a power measurement device, a smart gateway device, and a server that can calculate in real time. Further, by further including the first power control device and the second power control device, it is possible to effectively manage self-sufficiency of power in a predetermined area and reduce the load on the power grid system.

1 is a schematic diagram showing a power control system of the present invention. 1 is a schematic diagram showing a power measuring device of the present invention. It is a schematic diagram which shows the 1st electric power and the 2nd electric power in the power control system of this invention. FIG. 6 is a schematic diagram showing a situation in which the power measuring device in the power control system of the present invention calculates a current supply prediction value and a current usage prediction value. FIG. 4 is an operation schematic diagram showing a situation in which the first power is higher than the second power in the power control system of the present invention. FIG. 6 is another schematic diagram showing the situation when the first power is higher than the second power in the power control system of the present invention.

  For further understanding of the features and technical contents of the present invention, refer to the following detailed description and accompanying drawings of the present invention. However, the accompanying drawings provided are provided for reference and explanation only, and do not limit the scope of the claims of the present invention.

  Hereinafter, a “power control system” disclosed by the present invention will be described in a specific embodiment. Those skilled in the art can understand the merits and effects of the present invention from the disclosure of this specification. The present invention can be implemented or applied according to other different embodiments. Each subsection in this specification can be equivalently modified and changed based on various viewpoints or applications without departing from the spirit of the present invention. Further, the drawings of the present invention are for the purpose of simple and schematic illustration, and do not show actual dimensions. In the following embodiments, technical matters according to the present invention will be further described, but the disclosed contents do not limit the present invention.

  Note that in this specification, various parts or signals may be described with terms such as “first”, “second”, and “third”; however, these parts or signals are limited by these terms. Not something. It is to be understood that these terms are primarily used to distinguish one component from another, or one signal from another. Further, the term “or” used in the present specification may include any one or a combination of two or more of the related items depending on the actual situation.

[First Embodiment]
FIG. 1 is a schematic diagram showing a power control system of the present invention.
As shown in FIG. 1, the power control system 1 is installed in a predetermined area (not shown). The power control system 1 is electrically connected to the power grid system 2. The predetermined area (not shown) can be, but is not limited to, a house, a company, a building or a manor. At least one power generation device is installed in a predetermined area (not shown). This provides power for each electronic device in a given area (not shown). In addition, a predetermined area (not shown) can receive the power provided by the power grid system 2.

  The power control system 1 includes a server 10, a smart gateway device 11, a power measurement device 12, a first power control device 13, a second power control device 14, a power generation device 15, a smart meter 16, and an energy storage device 17.

  The smart gateway device 11 is communicably connected to the server 10 by wire or wirelessly. The power measuring device 12 is also connected to the smart gateway device 11 by wire or wirelessly so as to be able to communicate. In this embodiment, the server 10 can be a local server or a remote server.

  The first power control device 13 is electrically connected to the smart meter 16. The power generator 15 is electrically connected to the first power controller 13. The power generation device 15 generates electricity and provides the generated electricity to the first power control device 13. The first power control device 13 provides a first power to the smart meter 16.

  The second power control device 14 is also electrically connected to the smart meter and mainly receives the second power. The plurality of electronic devices ED1 to ED3 are electrically connected to the second power control device 14. In the present embodiment, the first electronic device ED1, the second electronic device ED2, and the third electronic device ED3 are electrically connected to the second power control device 14. The first electronic device ED1, the second electronic device ED2 and the third electronic device ED3 can be a TV, a washing machine, an electric heater, an air conditioner, a lighting device, an electric water heater or a charging device, but the present invention is not particularly limited. do not do.

  That is, the first power control device 13 adjusts the power generated at home in the power control system 1. The second power controller 14 is electrically connected to each electronic device and regulates the power used by each electronic device. In the present embodiment, the first power control device 13 is electrically connected to the smart meter 16 via the first cable CAB1, while the second power control device 14 is connected to the smart meter 16 via the second cable CAB2. It is electrically connected to the meter 16.

  In the present embodiment, the energy storage device 17 is electrically connected to the first power control device 13 and the second power control device 14.

  FIG. 2 is a schematic view showing a power measuring device of the present invention.

  As shown in FIG. 2, the power measurement device 12 includes a measurement control module 120, a first current measurement module 121, and a second current measurement module 122. The measurement control module 120 is electrically connected to the first current measurement module 121 and the second current measurement module 122. The first current measurement module 121 and the second current measurement module 122 are installed outside the first cable CAB1 and the second cable CAB2, respectively, and the first current supply value SA and the second power The current usage value SB is measured. The first current measuring module 121 and the second current measuring module 122 are installed on the first cable CAB1 and the second cable CAB2 so as not to change the circuit design and not to break the cables. The first current measuring module 121 and the second current measuring module 122 are inductive ammeters or Hall sensors (HALL SENSOR), respectively. The measurement control module 120 is a central processing unit (CPU) or an MCU (Micro-Processing Unit).

  The power measuring device 12 measures the current supply value SA per second of the first power E1 provided by the first power control device 13 to the smart meter 16 by the first current measuring module 121. That is, the power measuring device 12 records the current value of the first power E1 every second by the first current measuring module 121.

  The power measuring device 12 measures the current usage value SB of the second power E2 received by the second power control device 14 from the smart meter 16 every second by the second current measuring module 122. That is, the power measuring device 12 records the current value of the second power E2 every second by the second current measuring module 122. The reason why only the current value is recorded is that the voltage value is the same in a predetermined area (not shown). In another embodiment, if there are multiple voltage values and multiple smart meters in a given area (not shown), both voltage and current values need to be recorded.

  Next, the measurement control module 120 in the power measurement device 12 transmits the current difference value D between the current supply value SA and the current usage value SB recorded every one second to the first power control device 13 and the smart gateway device 11. .. Further, the power measuring device 12 transmits the current supply value SA and the current usage value SB recorded every one second to the smart gateway device 11.

  The first power control device 13 provides at least the first power supply device 15 so that the second power E2 becomes equal to or higher than the first power E1 based on the current difference value D provided by the power measurement device 12. The electric power E1 is adjusted.

  When the first electric power E1 is larger than the second electric power E2, the first electric power control device 13 cuts off the electric power path for transmitting to the smart meter, and the first electric power E1 generated by the power generation device 15 is stored as energy. Store in device 17. That is, the power control system 1 monitors the first power E1 and the second power E2 every second so that the first power generated in the power control system 1 is not transmitted to the power grid system 2.

  When the first power E1 is smaller than the second power E2, the power control system 1 purchases the third power E3 provided by the power grid system 2 through the smart meter 16. In the present embodiment, the power control system 1 controls the third power E3 in a predetermined area (not shown) to 0 or more.

  The smart gateway device 11 receives the current supply value SA, the current usage value SB, and the current difference value D corresponding to them, which are recorded by the power measuring device 12. The smart gateway device 11 transmits the current supply predicted value for each minute and the current usage predicted value for each minute to the power measuring device 12 every one minute.

  The current supply predicted value every 1 minute and the current usage predicted value every 1 minute are the predicted values of change in the current supply value SA and the current usage value SB for 1 minute. That is, the smart gateway device 11 calculates the current supply value SA and the current use value SB of 60 pieces for one minute, and obtains the change tendency of the current supply value SA and the current use value SB for the next one minute. That is, the power measuring device 12 sets the power control signal to the first based on the current supply value SA, the current usage value SB, the current difference value D, the current supply prediction value every 1 minute, and the current usage prediction value every 1 minute. The power controller 13 is provided to regulate the first power.

  In addition, the smart gateway device 11 supplies to the server 10 the current supply value SA, the current usage value SB, the current difference value D, the current supply predicted value every 1 minute, and the current usage predicted value every 1 minute recorded every second. Send.

  The server 10 uses at least the current supply value SA, the current usage value SB, the current difference value D, the current supply predicted value for each minute, and the current usage predicted value for each minute, and the current supply predicted value for each hour and Calculate the hourly current usage forecast. In addition, the server 10 is further based on parameters such as temperature, humidity, and brightness measured by the environment sensor 101 installed near a weather forecast, topography, a history of weather records, and a predetermined area (not shown). , Hourly current supply forecast value and hourly current use forecast value are calculated.

  The server 10 transmits the current supply predicted value for each hour and the current usage predicted value for each hour to the smart gateway device 11. As a result, the smart gateway device 11 causes the current supply predicted value for each hour, the current usage predicted value for each hour, the current supply predicted value for every minute, the current usage predicted value for every minute, and the current recorded every second. Based on the supply value SA, the current usage value SB recorded every second, and the current difference value D, the current supply value SA every one second and the current usage value SB every one second are calculated.

  In the present embodiment, the power generation device 15 is a solar power generation device. The energy storage device 17 is a lithium ion battery, a nickel manganese battery, a lithium polymer battery or a lithium manganese battery. In the present embodiment, the second power control device 14 includes an AC / DC voltage converter and an AC / AC voltage converter.

  In addition, the smart gateway device 11 may further provide a storage control signal to the energy storage device 17 to control on / off of the energy storage device 17. Thereby, energy is stored or energy is provided to the second power control device 14. More specifically, the electric power stored in the energy storage device 17 is transmitted so that it can be used by the first electronic device ED1, the second electronic device ED2, and the third electronic device ED3. Alternatively, the power is stored in the energy storage device 17 by the second power control device 14.

  See FIG. FIG. 4 is a schematic diagram showing a situation in which the power measuring device in the power control system of the present invention calculates the current supply predicted value and the current use predicted value.

  The first curve LA is a change record of the first electric power E1, and the second curve LB is a change record of the second electric power E2. After sunrise, the first curve LA gradually rises. Before sunrise, the second power E2 in the second curve LB is greater than the first power E1 in the first curve LA, so the power control system 1 purchases the third power E3 from the power grid system 2. There is a need. In the time zone of noon, the first electric power E1 on the first curve LA is larger than the second electric power E2 on the second curve LB. At this time, the power control system 1 stores the power generated by the power generator 15 in the energy storage device 17. Further, the power control system 1 does not need to purchase the third power E3 from the power grid system 2. That is, the third power E3 at this time is zero. After the evening, the first electric power E1 on the first curve LA is smaller than the second electric power E2 on the second curve LB. At this time, the power control system 1 can cause the electric power stored in the energy storage device 17 to be used by the electronic devices ED1 to ED3 connected to the second power control device 14. Alternatively, the power control system 1 can purchase the third power E3 from the power grid system 2 and cause the electronic devices ED1 to ED3 to use the purchased power.

  In FIG. 4, the current supply value LA (X) on the first curve LA and the current usage value LB (X) on the second curve LB, which respectively correspond to the first time point X, are shown. The power measuring device 12 calculates the current supply value LA (X) and the current usage value LB (X) to obtain the current supply prediction value LA (X + ΔX) and the current usage prediction value LB (X + ΔX) at the second time point X + ΔX. be able to. In the present embodiment, the current supply predicted value for each minute, the current usage predicted value for each minute, the current supply predicted value for each hour, and the current usage predicted value for each hour are used as the basis of the prediction calculation. Calculate the current supply prediction value and the current usage prediction value at the time point. The power control system 1 further makes corrections at predetermined time intervals according to the actual current supply prediction value and the current usage prediction value. For example, modifications are made every 30 minutes, thereby maintaining system accuracy.

  In the present embodiment, the server 10 not only provides the hourly current prediction value in the day but also the next day current prediction value.

  FIG. 5 is an operation schematic diagram showing a situation in which the first power is larger than the second power in the power control system of the present invention. FIG. 6 is another operation schematic diagram showing a situation in which the first power is larger than the second power in the power control system of the present invention.

  As shown in FIG. 5, when the power measuring device 12 determines that the first power E1 is equal to or higher than the second power E2, the power measuring device 12 transmits a control signal to the first power controller 13. Thereby, the first power control device 13 stores the power generated by the power generation device 15 in the energy storage device 17.

  As shown in FIG. 6, the smart gateway device 11 transmits a storage control signal to the energy storage device 17. Thereby, the extra first electric power E1 is directly stored. At this time, the first electric power E1 is not transmitted to the power grid system 2 but is stored in the energy storage device 17 via the second power control device 14.

[Benefit effects of the embodiment]
One of the beneficial effects of the present invention is as follows. The power control system according to the present invention jointly provides a system capable of long-term and real-time power prediction by a power measurement device, a smart gateway device, and a server that can calculate in real time. Further, by further including the first power control device and the second power control device, it is possible to effectively manage self-sufficiency of power in a predetermined area and reduce the load on the power grid system.

  The above-disclosed contents are only preferred practicable embodiments of the present invention, and do not limit the scope of the claims of the present invention. Therefore, equivalent technical modifications made based on the description of the present invention and the contents of the accompanying drawings are all included in the scope of the claims of the present invention.

1: Power control system 2: Power grid system 10: Server 11: Smart gateway device 12: Power measurement device 13: First power control device 14: Second power control device 15: Power generation device 16: Smart meter 17: Energy storage Device CAB1: First cable CAB2: Second cable 120: Measurement control module 121: First current measurement module 122: Second current measurement module ED1: First electronic device ED2: Second electronic device ED3: Third electronic device E1: First electric power E2: Second electric power E3: Third electric power X: First time point X + ΔX: Second time point LA: First curve LB: Second curve LA (X ): Current supply value LA (X + ΔX): Current supply predicted value LB (X): Current usage value LB (X + ΔX): Current usage predicted value SA: Current supply value S : Current use value

Claims (7)

A power control system installed in a predetermined area and electrically connected to a power grid system,
The power control system includes a server, a smart gateway device, a power measurement device, a smart meter, a first power control device, a power generation device, a second power control device, a plurality of electronic devices, and an energy storage device.
The smart gateway device is communicatively connected to the server,
The power measurement device is communicatively connected to the smart gateway device,
The first power control device is electrically connected to the smart meter and provides a first power,
The power generator is electrically connected to the first power controller,
The second power control device is electrically connected to the smart meter and receives second power,
The plurality of electronic devices are electrically connected to the second power control device,
The energy storage device is electrically connected to the second power control device,
The power measuring device measures a current supply value of the first power of the first power control device every second, and the power measuring device measures the second power control value of the second power control device every second. The current usage value of the power of
The power measuring device provides a current difference value between the current supply value and the current use value to the first power control device and the smart gateway device, and the first power control device sets at least the current difference value. The power control system is characterized in that the first power is adjusted based on the power control system.   The smart gateway device receives the current supply value, the current usage value and the current difference value recorded by the power measuring device, and the smart gateway device receives the current supply predicted value and the current supply predicted value for each one minute. A current usage predicted value for each minute is provided to the power measuring device, and the current supply predicted value for each minute and the current usage predicted value for each minute are the current supply value and the current usage value for one minute. A predicted change value, wherein the power measuring device is configured to determine the current supply value, the current usage value, the current difference value, the current supply predicted value for each minute, and the current usage predicted value for each minute. The power control system of claim 1, which provides a control signal to one power control device.   The smart gateway device transmits the current supply value, the current usage value, the current difference value, the current supply predicted value for each minute, and the current usage predicted value for each minute to the server. The described power control system.   Based on the current supply value, the current use value, the current difference value, the 1-minute current supply predicted value, and the 1-minute current usage predicted value, the server calculates an hourly current supply predicted value, The power control system according to claim 3, wherein the current usage prediction value is calculated for each hour.   The power control system according to claim 1, wherein the power generation device is a solar power generation device.   The power control system according to claim 1, wherein the second power control device receives a third power from the power grid system via the smart meter.   The smart gateway device provides an energy storage control signal to the energy storage device to control ON / OFF of the energy storage device, so that the energy storage device receives the power provided by the second power control device. The power control system of claim 1, wherein the energy storage device provides energy to the second power control device.

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